ALLOY COMPOSITION, METHOD FOR PRODUCING ALLOY COMPOSITION, AND DIE

WIPO Patent Application WO/2020/196879

A1

The purpose of the present invention is to provide an alloy composition that has a sufficient melting point with respect to casting of an aluminum alloy, and that has a high level of hardness and can suppress the occurrence of galling. The alloy composition of the present invention is provided with: an Mo-Cr-based dendritic structure 3, and an Ni-Al-based dendritic structure 5 that fills in the periphery of the Mo-Cr-based dendritic structure 3. In the alloy composition of the present invention, when Mo + Cr + Ni + Al = 100 at.%, a chemical composition I in which Ni + Al = 15-50 at.% and Mo + Cr = 50-85 at.%, or a chemical composition II in which Ni + Al = 40-70 at.% and Mo + Cr = 30-60 at.%, can be adopted.

JP2768721	[Title of Invention] Contact material for vacuum valve
JPH08268799	MANUFACTURE OF BRAZABLE IN AIR TOOL INSERT AND INSERT MADE THEREOF
JP3607039	High-strength corrosion-resistant and wear-resistant alloy

KOSEKI SHUHO (JP)
INOUE KENICHI (JP)
SHIRATORI HIROSHI (JP)
SHINAGAWA KAZUYA (JP)

PCT/JP2020/014243

October 01, 2020

March 27, 2020

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HITACHI METALS LTD (JP)

C22C27/04; B22D21/04; B22F1/00; C22B9/22; C22C27/06; C22C30/00

JPH05271841A	1993-10-19
CN108546862A	2018-09-18
US5858558A	1999-01-12
JPH0649573A	1994-02-22
JP2002088431A	2002-03-27
JP2017057461A	2017-03-23
JPH01168837A	1989-07-04
JPH01502680A	1989-09-14

See also references of EP 3950992A4

OBA, Mitsuru et al. (JP)

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